Update CHANGELOG.md

Author: benmccann

CHANGELOG.md

@@ -4,6 +4,7 @@
 
 - Add `aria-description` to the list of allowed ARIA attributes ([#7301](https://github.com/sveltejs/svelte/issues/7301))
 - Add TypeScript interfaces for typing actions ([#6538](https://github.com/sveltejs/svelte/issues/6538))
+- Do not generate `unused-export-let` warning inside `<script context="module">` blocks ([#7055](https://github.com/sveltejs/svelte/issues/7055))
 
 ## 3.46.4